Reciprocating gearing



UNITED STATES PATENT OEEICE.

JOHN WENZIN, OF MINNEAPOLIS, MINNESOTA.

RECIPROCATING GEARING.

SPECIFICATION forming part of Letters Patent N o. 421,533, dated February 18, 1890.

Application iiled May 28, 1889l To @ZZ whom it may concern.-

Be it known that I, JOHN VENZIN, of Minneapolis, in the county of Hennepin and State of Minnesota, have invented certain Improvements in Reciprocating Gearing, of which the following is a specification.

This improvement relates particularly to improvements in gearing designed for use in connection with reciprocating or lon gitudinally-movable shafts.

In the construction of machinery it is frequently necessary to use shafts which reciprocate longitudinally while being geared together, so as to be rotated one from the other.

My invention consists, generally, in constructing gearing which may be applied to shafts which are to be simultaneously rotated one from the other, and also given a simultaneous longitudinal movement.

In the accompanying drawings, forming part of this specification, Figure 1 is a front elevation of myimproved gearing. Fig. 2 is a vertical section of the same on line :r :n of Fig. 1. Fig. 3 is a detail.

In the drawings, 2 represents a suitable shaft mounted in suitable bearings 3, and capable of longitudinal movement therein. 4 represents a shaft mounted in bearings 5, and preferably arranged parallel to the shaft 2. One of these shafts is provided with means for causing it to move longitudinally While it is being rotated. I have here shown the shaft 4 provided with a worm or screw-thread 6, which is arranged to engage a corresponding thread in one or both of the bearings 5. As the shaft 4 is rotated, it is caused by its worm to move longitudinally in its bearings. The shaft 2 is provided with a gear-wheel 7, which is preferably what is known as an internal or cup gear, being provided with a ring or flange 9, having gear-teeth upon its inner surface. A ring 10 is secured to the face of the gear-Wheel 7, the inner periphery of the ring extending toward the center of the gear. This ring is preferably connected to the gearwheel 7 by means of arms 11, which extend over the periphery of the gear and are bent down against its opposite face.

The shaft 4 is provided with a pinion 12, which is arranged to engage the gear-wheel Serial No. 312,394. (No model.)

I have shown the gear-wheel 7 provided with a handle 15, by means of which lpower may be applied to the shaft 2. From this shaft power will be communicated through the gear-wheel and pinion to the shaft 4, and as this shaft is caused to move longitudinally the shaft 2 will also move longitudinally with it.

This gearing will be found to be advantageous for. use in apple or potato paring machines, though it may be used in many other places.

I claim as my invention- 1. The combination, with the longitudinallymovable shaft 2, provided with the gear-wheel 7, of the ring 10, secured upon the face of said gear-wheel, and the longitudinally-movable shaft 4, provided with the pinion 12, engaging said gear-wheel and projecting inside of said ring, whereby said shafts will have a simultaneous longitudinal movement, substantially as described.

2. The combination, with the longitudinallymovable shaft 2, provided with the internal gear-Wheel 7, and with the ring 10, secured upon the face of said gear-wheel, of the shaft 4, provided with a collar 13 and a pinion 12, said pinion engaging said gear-Wheel and projecting inside of said ring, and said shaft provided also with a screw-thread engaging a corresponding thread in the shaft-bearing, for the purpose specified.

In testimony whereof I have hereunto set my hand this 11th day of May, 1889.

JOI-IN VENZIN.

In presence of A. M. GAsKILL, J. J ESSEN. 

